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Now showing items 21-30 of 37
A deep search for faint galaxies associated with very low-redshift C iv absorbers: A case with cold-accretion characteristics
(The American Astronomical Society, 2013)
Studies of QSO absorber–galaxy connections are often hindered by inadequate information on whether faint/dwarf
galaxies are located near the QSO sight lines. To investigate the contribution of faint galaxies to QSO ...
Isothermal dust models of Herschel-ATLAS galaxies
(Oxford University Press, 2013)
We use galaxies from the Herschel-ATLAS survey, and a suite of ancillary simulations based on an isothermal dust model, to study our ability to determine the effective dust temperature, luminosity and emissivity index of ...
Black hole - galaxy correlations without self-regulation
(American Astronomical Society, 2013)
Recent models of black hole growth in a cosmological context have forwarded a paradigm in which the growth
is self-regulated by feedback from the black hole itself. Here we use cosmological zoom simulations of galaxy
formation ...
The COS-Halos survey: Rationale, design and a census of circumgalactic neutral hydrogen
(IOP Publishing, 2013)
We present the design and methods of the COS-Halos survey, a systematic investigation of the gaseous halos of
44 z = 0.15–0.35 galaxies using background QSOs observed with the Cosmic Origins Spectrograph aboard the
Hubble ...
The slow flow model of dust eflux in local star-forming galaxies
(Oxford University Press, 2013)
We develop a dust efflux model of radiation pressure acting on dust grains which
successfully reproduces the relation between stellar mass, dust opacity and star forma-
tion rate observed in local star-forming galaxies. ...
The high-ion content and kinematics of low-redshift lyman limit systems
(The American Astronomical Society, 2013)
We study the high-ion content and kinematics of the circumgalactic medium around low-redshift galaxies using a sample of 23 Lyman limit systems (LLSs) at 0.08 < z < 0.93 observed with the Cosmic Origins Spectrograph on ...
Radio-loud active calactic nucleus: is there a link between luminosity and cluster environment?
(American Physical Society, 2013)
We present here the first results from the Chandra ERA (Environments of Radio-loud AGN) Large Project,
characterizing the cluster environments of a sample of 26 radio-loud active galactic nuclei (AGNs) at z ∼ 0.5
that ...
Physical properties of spectroscopically-confirmed galaxies at z >= 6. II. Morphology of the rest-frame UV continuum and Lyman-alpha emission
(IOP Science, 2013)
We present a detailed structural and morphological study of a large sample of spectroscopicallyconfirmed
galaxies at z ≥ 6, using deep HST near-IR broad-band images and Subaru optical narrowband
images. The galaxy sample ...
VLT/XSHOOTER & Subaru/MOIRCS spectroscopy of HUDF-YD3: No evidence for Lyman-alpha emission at z=8.55
(Oxford University Press, 2013)
We present spectroscopic observations with VLT/XSHOOTER and Subaru/MOIRCS of a relatively bright Y -band drop-out galaxy in the Hubble Ultra Deep Field, first selected by Bunker et al. (2010), McLure et al. (2010) and ...
Theoretical evolution of optical strong lines across cosmic time
(The American Astronomical Society, 2013)
We use the chemical evolution predictions of cosmological hydrodynamic simulations with our latest theoretical
stellar population synthesis, photoionization, and shock models to predict the strong line evolution of ...